DE19515495A1 - Spring hinge - Google Patents

Abstract

A process is disclosed for mounting a spring hinge subassembly having a hinge element (11) and a spring element (7). The hinge element (11) is stamped and/or formed from a preferably strip-shaped material (481) and the spring element (7) is set on the hinge element (11) while the hinge element (11) is still joined to the strip-shaped material.

Description

The invention relates to a method of manufacture spring hinge or for Mon days of an assembly for a spring hinge, where the assembly is a hinge element and a spring element includes.

Spring hinges are generally known. You point a housing in which a spring element brings bar, which is a pivoting with this spring hinge-connected temple over the nor male carrying position and the glasses lenbügel applied with a biasing force, through which the temple against the head of the eyeglass gers is pressed. It has turned out to be disadvantageous issued that the manufacture of the coulter niers is quite complex. On the one hand, they are zer machining manufacturing steps complex and explored mostly expensive profiled materials.

In addition, the assembly of the above Spring element, which preferably consists of a Hinge element, a closure part and a Fe  the element is composed because of the very little complicated dimensions of the individual parts. There the individual parts usually as bulk goods are available, an elaborate one is required first Align to assemble the parts in to bring the right position.

The object of the invention is therefore to a method for producing a spring element specify that is inexpensive to implement and the handling of the individual parts improved and thus leads to further cost advantages.

This task is characterized by the characteristics of Pa Claims 1 and 4 solved. Because that Hinge element made from a metal strip is and the application of a spring element and preferably a closure part is carried out, as long as the hinge element is still with the metal stripes is connected, on the one hand there is no double buffer the hinge elements in front of the assembly peninontage and secondly the alignment of the Hinge elements.

Through the use of non-cutting manufacturing The housing and share can also move kidney elements can be manufactured inexpensively. On Another advantage arises if the housing is made of is made of a material of uniform thickness. Then namely the wall thicknesses of the housing in the essentially the same, which is the case with  inductive heating of the housing a glow thin other areas is avoided.

Do not separate the assembled assembly from the Metal strips, that's a particularly good handle Exercise possible, the insertion into the spring share kidney housing relieved.

The invention is based on the drawing tion explained in more detail. Show it:

Fig. 1 shows a longitudinal section through a first off operation example of a spring hinge;

Fig. 2 is a plan view of the spring hinge shown in Fig. 1 Darge.

Fig. 3 shows a longitudinal section through an insertable in the Ge housing according to FIG 1 Ver closing part;

Fig. 4 is a front view of the closure part;

Fig. 5 is a plan view of the closure member;

Fig. 6 shows a longitudinal section through a second guide for example from a spring hinge;

Fig. 7 is a bottom view of the spring hinge shown in Fig. 6;

Fig. 8 is a perspective view of a United closure part;

Fig. 9 is a longitudinal section through a further embodiment of a coulter spring niers;

Fig. 10 is a bottom view of the spring hinge shown in Fig. 9;

. FIG. 11 is a longitudinal section through a spring in the hinge according to Fig 9 used closure member;

Fig. 12 is a bottom view of the closure member shown in Fig 11;

Figure 13 is a longitudinal section through a further embodiment of a spring coulter kidney.

FIG. 14 shows a cross section along the line AA drawn in FIG. 13;

FIG. 15 is a perspective schematic view of a closure partially used in connection with the spring hinge according to FIG. 13;

Fig. 16 is a schematic representation of the manufacture position of a housing;

Fig. 17 is a schematic representation of the manufacture position of a hinge element;

Fig. 18 is a schematic view of the individual steps for assembling a module, and

FIG. 19a, a plurality of coulter shown schematically b nierelemente.

Spring hinges of the type mentioned here for fastening eyeglass temples to a medium part of glasses used, the spring coulter nier is usually attached to the bracket and a Has hinge element, which with a share nier cooperates on the middle part of the glasses and the The hinge connects with this in an articulated manner. The bracket can ver from its rest position to a carrying position stored and unfolded beyond this being by a spring element of the spring hinge a restoring force is applied.

The first exemplary embodiment shown in FIG. 1 of a spring hinge 1 is shown in longitudinal section and has a housing 3 which was produced by a stamping process from deformable material, for example from metal, in a deep-drawing or stamping process. A more detailed description of the method takes place in connexion with FIG. 16. The housing 3 is open on its underside 5 . A spring element 7 designed as a helical spring is introduced into the housing 3 and is attached to an elongated extension 9 of a hinge element 11 . Here, the extension is formed as an elongated pin which protrudes through the coil spring and the end of which is widened, for example by a squeeze, that an abutment for the coil spring is formed. The opposite end of the coil spring or the spring element 7 is supported on an introduced into the housing 3 closure part 13 through which the hinge element 11 is passed. The closure part 13 is entirely taken up by the housing 3 , while the hinge element 11 has a hinge element 15 projecting from the front side of the housing 3 , which interacts with a central part hinge provided on the central part of glasses. The spring element 7 and the closure part 13 are dimensioned so that none of the parts protrudes beyond the underside 5 of the housing 3 , but rather that a smooth surface is formed with which the housing 3 rests on the surface of a bracket and with this firmly connected, preferably soldered.

The hinge eye 15 is formed in one piece with the rest of the hinge element 11 . The extension 9 is part of the same, so that the parts required for the manufacture of the spring hinge 1 are reduced to a minimum. After the spring element 7, which is designed as a helical spring, is pushed onto the extension 9 and the end of which has been so widened that the spring can no longer be easily removed, the spring element 7 and the hinge element 11 form a unit.

Since the shutter member 13 with the underside of the housing 5 closes smooth, the underside of the closure part 13 flat surface on the top of the bracket is on, when the housing is 3 consolidates there be. On the other hand, the United closing part 13 is supported near the end face of the housing 3 on the inside 17 thereof. In the assembled state of the spring hinge 1 , the closure part 13 is thus optimally held.

The closure member has a smooth inner surface 19 on which the hinge element 11 lies flat. This inner surface 19 serves as a first guide surface for the hinge element 11 which is displaceable within the housing 3 against the force of the spring element 7 . A second guide surface 21 is formed in that the closure part 13 at least partially encloses the hinge element 11 in the interior of the housing 3 and thus leads. A third guide surface 23 is formed in that the hinge element 11 bears against a white inner surface of the closure part 13 .

The hinge eye 15 is dimensioned so that it rests with a stop shoulder 25 on the end face of the housing 3 . Preferably, the closure part 13 is so large that it also bears against the stop surface 25 when the hinge element 11 is pulled against the end face of the housing 3 due to the spring element 7 which is under a prestress.

Since the hinge element 11 is inserted through the closure part 13 and a prestressing force is applied to it by the spring element 7 , while the spring element 7 is held by the widened end region of the extension 9 on the hinge element 11 , an assembly unit results from the hinge element 11 , the Federele element 7 and the closure part 13 is composed.

The mounting unit is inserted after attachment, for example by soldering or welding, of the hous ses 3 on a temple, which is not shown in Fig. 1. The closure member 13 has a resiliently articulated on the base of the closure member Ver locking lug 27 which engages in the embodiment shown here in a recess 29 which is introduced into the wall of the housing 3 and is arranged in the top thereof. A suitable abutment 31 prevents the locking lug from being pushed too far out of the housing 3 and ultimately fills the recess 29 over the entire surface without projecting beyond the surface of the housing 3 .

Basically, it is conceivable that the recess 29 only forms a recess in the wall of the hous ses 3 and that the locking lug 27 engages in this and thus the locking part 13 in the interior of the housing 3 provides support. In the exemplary embodiment shown here, the recess 29 breaks through the wall of the housing 3 completely, so that the locking lug 27 is reachable from the outside and can be urged into its unlocked position. The locking lug 27 is connected via a spring arm 33 to the main body of the United circuit part 13 .

From the top view according to FIG. 2 it can be seen that the hinge eye 15 projects beyond the end face 35 of the housing 3 and is narrower than this. The illustration also shows the recess 29 , which is formed here only as an example from the square and receives the locking lug 27 . The dimensions of the recess and the locking nose 27 are coordinated so that the interior of the housing 3 is protected by the locking nose 27 against the ingress of dirt. Accordingly, the closure part 13 is dimensioned so that the end face 35 of the housing 3 is protected against the ingress of dirt.

Fig. 3 shows the closure part 13 in the disassembled state. The inner surface 19 can be clearly seen, which serves as the first guide surface for the hinge element 11 . In addition, the second guide surface 21 and the third guide surface 23 can be seen , which cooperate with the first guide surface so that the hinge element 11 is guided with virtually no play inside the closure part 13 . This results in an optimal guidance of the hinge element 11 inside the housing 3 .

Fig. 3 also shows the spring arm 33 explained with reference to Fig. 1, the locking lug 27 and the abutment 31 again.

The internal dimensions of the closure part 13 are matched to the dimensions of the hinge element 11 according to the above, that this is practically guided without play.

The front view of the closing part 13 shown in FIG. 4 shows that between the second guide surface 21 and the inner surface 19 there is a practically square opening 37 which element 11 is penetrated by the - preferably also square in this area - Scharnierele element. Fig. 4 reveals the third guide surface 23. In addition, Fig. 4 shows an end surface 38 which is also referred to as a running surface. Their exact function will be described later.

The design of the closure part 13 is adapted to the inner shape of the housing 3 , so that - in the installed state of the spring hinge 1 - the United closure part 13 lies with its underside 39 on the surface of the temple shown, with its top 41 on the inside page 17 of the housing 3 abuts, while the Be tenflächen 43 and 45 preferably rest against the Seitenwän the housing 3 . The closure member 13 is thus in the assembled state of the spring hinge 1 from the housing 3 virtually without play festgehal th.

From Fig. 4 it can be seen that the closure part 13 encloses the hinge element 11 from all sides, so that the assembly mentioned above is formed unit.

The top view shown in FIG. 5 on the upper side 41 of the closure part 13 shows that the width of the locking lug 27 may be less than that of the closure part 13 . The Verrie gelungsnase 27 holding spring arm 33 may be formed as a continuous material bridge. However, it is sufficient if at least one narrow spring arm is seen before, or, as in the exemplary embodiment shown here, two substantially V-shaped spring arms 33 connect the locking lug 27 elastically with the base body of the closure part 13 .

The locking lug 27 , which has a surface formed as a run-up slope according to FIG. 1 or 3, forms a kind of snap closure with which the assembly unit made of spring element 7 , hinge element 11 and closure part 13 is held securely inside the housing 3 . The Ver locking nose 27 is held in the recess 29 due to the spring action of the spring arms 33 .

The hinge element 11 as well as the United closure part 13 are preferably made of metal, in particular nickel-free metal, preferably titanium, so that allergic reactions of the spectacle wearer are avoided and on the other hand wear and tear is reduced to a minimum.

Fig. 6 shows a further embodiment of egg nes spring hinge 101 in longitudinal section. There is also a housing 3 recognizable here, which receives a closure part 13 , which is penetrated by a Scharnierele element 11 and which penetrates with a continuation 9, a spring element 7 , which is also formed here as a coil spring. The coil spring is supported on the one hand on the United circuit part 13 on the other hand from an abutment ring 47 which is pushed onto the extension 9 and is held by a widening of the extension 9 , for example, by pinching. The Fe derelement 7 is applied under pretension to the extension, so that the hinge member 11 is thus drawn into the closure member 13 in that the hinge eye 15 is pulled against the end face 35 of the Gehäu ses 3 and the closure part. 13

The housing 3 is designed so that its lower side 5 is neither towered over by the spring element 7 nor by the closure part 13 . So if the Ge housing 3 is applied to a temple, soldered in for example, the closure member 13 is flush with its underside on the top of the bracket. On the other hand, the closure part 13 lies with its top on the inside 17 of the Ge housing 3 , so that in the assembled state of Fe derscharniers 101, the closure part 13 is held securely inside the housing 3 and a guide for the hinge element 11 forms. This lies on the one hand on the inner surface 19 of the closure part 13 , which forms a first guide surface, on the other hand on a second guide surface 21 , which springs near the contact area of the spring element 7 and extends in the direction of the end face 35 . Near the end face there is a third guide surface 23 which, like the first guide surface 21 , the inner surface 19 is arranged opposite one another. The distance between the third guide surface 23 is greater than that of the first guide surface 21 , since the hinge element 11 is higher in this area.

Preferably, the hinge element 11 is produced as a bent part, namely from an elongated wire part forming the extension 9 , which forms an eyelet in the area of the hinge eye and is returned into the interior of the closure part 13 in order to rest on the third guide surface 23 . The hinge element 11 shown here is particularly inexpensive to implement. Another way of manufacturing the hinge member 11 will be explained with reference to FIG. 17.

From the bottom view of FIG. 7 it can be seen that the bearing ring 47 rests on the inner surfaces of the Ge housing 3 of a spring hinge 101 and is securely guided there. The side walls of the closing part 13 are in turn in contact with the inner flanks of the housing 3 , so that here too the locking part 13 is guided securely in the housing 3 .

The closure part 13 here has two locking lugs 27 a and 27 b, the resiliently attached to Fe derarmmen 33 and connected to the base body of the closure part 13 . The locking tabs 27 a and 27 b engage in recesses 29 of the housing 3 , which are introduced here in the side walls. Basically, wells are sufficient here, in which the locking lugs 27 a and 27 b engage. In the exemplary embodiment shown here, the recesses 29 break through the side walls 21 . The outer surfaces of the locking tabs 27 a and 27 b close flat with the outside of the housing 3 , so that the optical properties of the spring hinge 101 are not affected in any way and the locking tabs for a possible disassembly of the closure part 13 remain accessible. The locking lugs 27 a and 27 b engage as recesses in the recesses 29 . To support the locking forces of the spring arms 33, the Federele element 7 also acts on the inside of the locking noses 27 a and 27 b, so that these are pushed out into the recesses 29 . If the eyeglass temple is overstretched, the hinge element 11 , which is displaceably mounted in the longitudinal direction of the housing 3 against the force of the spring element, is pulled out of the interior of the housing 3 and the spring element 7 is compressed. This increases the spring forces acting in the direction of the locking position of the locking lugs 27 a and 27 b, so that the anchor member 13 is securely anchored in the interior of the housing 3 when the spring coulter 101 is loaded.

In the embodiment according to FIG. 7, the underside of the locking member is closed virtually ge 13. There are only two slots 53 seen before, through which the spring arms 33 are formed, who connect the locking lugs 27 to the rest of the closure part 13 .

In Fig. 8 a slight modification of the United closing part 113 is shown. It is characterized by the fact that the bottom is open. Here, the hinge element 11, not shown in FIG. 8, is guided on the one hand by the second guide surface 21 and the third guide surface 23 shown in FIG. 6 and, on the other hand, by the surface of an eyeglass temple to which the spring element 111 is applied with a closure part 113 .

The perspective bottom view of the closure member 113 shows particularly well the design of the locking lugs 27 a and 27 b, whose outer surface is approximately wedge-shaped, so that the snap closure mentioned arises while the locking lugs are pushed outwards by the spring arms 33 .

The underside 39 of the closure part 113 is flat, so that it rests flat on the surface of an eyeglass temple and can form an optimal guide for the hinge element 11 .

The spring hinges explained with reference to FIGS. 1 and 6 agree after all in so far as, after the housing 3 has been applied to the surface of a temple, the inserted assembly unit comprising the hinge element, spring element and closure part can be removed again at any time because the locking lugs of the closure parts by remain accessible even when assembled.

Fig. 9 shows a further embodiment egg nes spring hinge 201 , which in turn comprises a housing 3 , a spring element 7 inserted into the housing and also a hinge element 11 also arranged inside the housing 3 , which on the one hand has an extension 9 and on the other hand is integral with it connected hinge eye 15 comprises. The hinge element also runs here inside egg NES closure part 13 which engages around the hinge element 11 at least in a U-shape.

The housing 3 , as shown in FIG. 10, unlike the housing described above, is provided with a bottom 55 which encloses the assembly unit introduced into the interior of the housing from spring element 7 , hinge element 11 and closure part 13 .

The closure part 13 is here also provided with a locking lug 27 which engages in a recess 29 in the housing 3 . Here, however, the recess 29 is made in the bottom 55 , so that the locking lug 27 is no longer accessible after the spring hinge 201 has been applied to an eyeglass temple. The interior of the housing 3 is thus better protected against dust and other pollution, which can also occur during a soldering process.

The spring element 7 is here in turn secured by an abutment ring 47 on the extension 9 , which is secured against slipping off by an end deformation of the extension 9.

The underside of the hinge element 11 lies flat on the inside of the bottom 55 , which thus forms a first guide surface. A second guide surface 21 is formed near the spring element 27 , a third guide surface 23 near the end face of the housing 3 . So that the coulter kidney element 11 , as in the other Ausführungsbei play, safely guided by the closure member 13 , the inside of which is so coordinated with the dimensions of the coulter kidney elements 11 that an optimal lateral guidance is guaranteed.

Between the end face of the housing 3 and the hinge eye 15 , which in turn forms a stop surface 25 , a closure plate 57 can be provided here, which prevents the penetration of dirt tongues on the end face of the housing.

From the bottom view of FIG. 10, ersicht Lich that the hinge member is smaller than 11, the housing 3. The recess 29 , which completely penetrates the wall of the housing 3 and surrounds the locking lug 27 all around, is also clearly visible.

Fig. 11 shows the closure member 13 in longitudinal section. The spring arm 33 is clearly visible here, via which the locking lug 27 is connected to the base body of the closure part. The spring arm is formed by a side wall region of the Rie gelungsteils, which is separated by a slot 59 . The illustration shows that the closure part 13 can be provided with a circumferential bead 61 which serves to close off the end face of the housing 3 and, if appropriate, can replace the closure plate 57 , which is shown in FIG. 9. In such an embodiment, the closure part 13 forms a contact surface on the underside of the hinge element 11 and performs this particularly well.

The spring arm 33 can be provided at its right end with egg ner bevel 63 , against which the spring element 7 acts so that the locking lug 27 is acted upon with an additional, downward acting the biasing force, which thus urges the locking lug 27 into its locking position . Is by an axial movement of the hinge element 11 - in Fig. 9 to the left - the spring element 7 opens with an increased biasing force, this causes an improvement in the Ver anchorage of the locking lug 27 in the associated recess 9 in the housing 3rd

The bottom view in Fig. 12 of the locking element 13 shows that the width of the locking nose 27 may be less than that of the rest of the closure part 13th In contrast, the bead 61 projects beyond the lateral boundary lines of the closure part 13 , so that a closure of the end face of the housing 3 is formed, thereby increasing the running surface 38 to the cross-sectional area of the housing on its end face.

In the second and third embodiments the spring hinge, the housing is also made  a deformable, preferably deep-drawable Material made. The closure parts and the Hinge elements can be made of plastic his. However, nickel-free Me tallteile used, such as titanium.

Fig. 13 finally shows a fourth embodiment example of a spring hinge 303 , which in turn comprises a housing 3 with a bottom 55 . Inside the housing there is a spring element 7 , for example a helical spring which is pushed over an extension 9 of a hinge element 11 and is held by an abutment ring 47 and an end widening of the extension. The bearing ring 47 forms a first contact surface, a closure part 213 a second contact surface.

The closure part 13 comprises, in addition to the extension 9, a hinge eye 15 which protrudes from the housing 3 and whose dimensions are selected such that a stop surface 25 is formed which rests on the end face of the housing 3 . The spring element 7 is under a prestress, so that the coulter nierauge 15 is pressed ge against the end face of the housing 3 .

The bottom 55 of the housing 3 has a recess 29 , which is designed here as an opening. In this engages a locking lug 27 of the United closing part 213 , which is realized as a bent sheet metal part. It serves as a guide for the hinge element 11 which can be displaced in the horizontal direction against the force of the spring element 7 and has an opening 65 , the side walls of which are matched to the contour of the extension 9 in such a way that a guide surface for the hinge element 11 is formed here.

The closure part 213 lies flat with its upper side on the inside 17 of the housing 3 and on the other hand on the bottom 55 , so that an optimal mounting of the closure part 213 is ensured.

Fig. 14 shows a cross section along the line AA drawn in Fig. 13, from which it is clear that the closure part 213 bears with its outer surface all around on the inner surface of the housing 3 , that is to say is held securely. On the unte ren, the bottom 55 facing side of the hinge element 11 , two side arms 67 and 69 of the closure part 13 extend, the inner surfaces facing this serve as guide surfaces for the hinge element 11 . The underside 39 of the closure part 213 lies flat on the bottom 55 of the housing 3 , so that here, too, guidance of the coulter element 11 is given.

Fig. 15, finally, shows a schematic diagram of the closure member 213 shown in Fig. 13 and 14. The side arms 67 and 69 are clearly recognizable, the mutually facing inner surfaces of which bear against the outside of the hinge element 11 and form guide surfaces. This illustration also shows the opening 65 , through which the extension 9 projects, and the inner surface of which is the guide surface for this extension.

The side arms 67 and 69 serve as spring arms for the locking lug 27 through which the closure part 213 is held after insertion into the housing 3 si cher.

As with the exemplary embodiments shown above, the hinge element 11 comprises both the hinge eye 15 and the extension 9 on which the spring element 7 is attached. Since the coulter nierelement 11 penetrates the respective closure part in all embodiments, the Fe derelement, the hinge element and the closure part form an assembly unit which can be easily inserted into the housing 3 .

In the embodiments in which the Ge housing 3 is provided with a bottom 55 , the mounting unit can be finally brought into the housing 3 before the housing is attached to an eyeglass temple, so that the spring element forms a pre-assembled assembly. The housing 3 can then be fastened in a suitable manner to an eyeglass temple, with adhesive methods being preferred due to the spring properties of the spring element 3 . In the case of a soldered or welded connection between the housing and an eyeglass temple, the assembly unit is preferably subsequently introduced into the housing. This prevents the closure part from being exposed to the soldering or welding heat, which would have a negative effect on the strength of the running surface of the closure part.

In the transition region between the side arms 67 and 69 and the locking lug 27 , a starting slope 71 , shown here in broken lines, can be provided in the exemplary embodiment of the closure part 213 in FIG. 15. Is the spring element 7 facing arm 73 of the closure member 213 with a spring force, this is urged against the run-up slope 71 , so that the locking nose 27 in turn is pressed down, that is, in its locking position. So increases the biasing force of the spring element 7 when overpressing the temple, the locking effect of the locking lug 27 is reinforced by means of the chamfer 71 .

The explained with reference to FIGS . 13 to 15 Ausfüh approximately example of the spring hinge 303 is characterized by a particularly inexpensive to manufacture Ver closure part 213 , which is held securely inside the Ge housing 3 , the top 41 of the closure part 213 securely on the inside 17 of the Housing 3 rests, while the underside 39 of the side arms 67 and 69 lies flat against the inside of the housing 3 serving as the first guide surface (see FIG. 13). Since the closure part 213 is held securely in the housing 3 , an optimal guidance of the hinge element 11 can be ensured, even if the closure part 213 is formed from a sheet metal part and can therefore be made very inexpensively.

Is that from the spring element, the hinge element and the closure part existing assembly unit in a case with bottom inserted and is in the Bottom of a recess for a locking lug provided the closure part, the assembly can unit after attaching the housing to one Eyeglass temples can no longer be removed as the Locking lugs no longer accessible from the outside are. The spring hinge is used as a pre-assembled construction group used and as a whole on glasses bracket applied, remains before assembly of the Fe derscharniers the locking lug accessible, so that then also an expansion of the assembly unit from the Housing is still possible.

In all cases it is guaranteed that at one simple structure of the spring hinge a prefabricated assembly unit in a on a temple applied housing can be introduced, which Closure part of the assembly unit on the one hand gives a secure hold inside the housing and on the other hand, optimal guidance of the hinge elements guaranteed. It also offers Closure part of a tread, the material of which are optimal and by annealing during soldering welding or have not been affected.

In all cases it can be an easy to manufacture Embossed part can be used as a housing, so that Spring hinge is inexpensive to manufacture. There the closure member from at least three sides of the Housing is enclosed while the fourth side completed by the surface of the temple  is, but also dirt or varnish Do not polish inside the coulter niers arrive, so that a very high functional efficiency is ensured. Because the face of the housing practically through the closure part is tightly sealed and since the rest of the case against the flat surface of the bracket, one against Contaminated spring hinge ready posed without a particularly large Kon structural effort needed. The Ausgestal too tion of the closure part as a guide for the coulter nierelement simplifies the design effort for the spring element and lowers the production cost most.

Fig. 16 shows an example of seven levels, the production of a housing. A metal strip 481 , which preferably consists of nickel-free metal, such as titanium, serves as the starting material. The thickness of the metal strip 481 corresponds to the desired maximum wall thickness of the housing to be produced.

In the first stage I, an area 483 is first cut free or punched out, which is selected to be somewhat larger than the area of the “opened” housing.

In step II, a central region of the surface 483 is embossed or drawn to produce the side walls 485 of the housing. This creates a cross-sectionally U-shaped part made of side walls 485 and the top of the housing 487 . The two non-drawn lateral areas of surface 483 are referred to as wings 489 . Characterized in that the housing top 487 should drop from the front end S to the opposite end H (see FIG. 1), the side walls 485 are higher in the area S than in the middle and rear area M or H. Accordingly, the wings 489 are in Area M wider than in the front area S.

The non-uniform contour of the wings 489 is straightened in step III. At the same time Einker exercises 491 are introduced mirror-symmetrically to the longitudinal axis of the housing in the wings 489 . Both the straightening and the introduction of the notches 491 are preferably carried out by stamping. In step III, the two wings 489 are also folded up in the rear area H, so that clean transitions from the rear housing wall 493 to the housing side walls are produced.

In the next step IV, the two wings 489 are folded up over the entire length of the housing, so that they are each in one plane with a side wall 485 .

In step V, the front end S of the metal tape or strips 481 cut free, so that the housing is only connected to the rear housing wall 493 with the metal strip 481 . The fact that it is not cut on a front-side embossed edge 495 but rather on the inside creates an opening on the front side S towards the inside of the housing.

In step VI, a bending mandrel is inserted into this opening, which permits a defined alignment of the side walls 485 and a folding of the wings 489 . The arrows P indicate that not only the wings 489 but also the side walls 485 are subjected to a compressive force. The wings 489 folded inward thus form the bottom of the housing, the two notches 491 together forming the recess provided for receiving the locking lug of the closure part.

In the last processing step VII, only the connection between the metal strip 481 and the rear housing wall 493 then has to be severed in order to obtain the finished housing.

Fig. 17 shows an example of the production of the hinge element 11, as shown in the foregoing Fig. 1 through 13.

As with the manufacture of the housing, a band-shaped material 481 is also the starting point for manufacture. Nickel-free metals such as titanium are preferably used.

First, the basic shape of the hinge element is cut free in a first step I. This creates the basic shape of the extension 9 and at least part of the region 497 which closes on the extension 9 and later has the hinge eye . The hinge element 11 is thus fastened to the metal strip 481 with this area 497 and the opposite end of the extension 9 .

Of course, the hatched free cut area can also be extended to a metal strip edge, so that the free cut hinge element 11 is only connected on one side to the metal strip 481 .

In process step II, the extension 9 is given the desired rounding, for example by two semicircular embossing tools interacting accordingly.

In method step III, the metal strip area existing between two adjacent extensions 9 is separated, for example by means of a stamping tool.

In method step IV, the connection between extension 9 and metal strip 481 is completely broken. At the same time, the hinge eye 15 is introduced into the area 497 , preferably by punching.

The shape of the hinge eye 15 have the area 497 and the separation of the hinge element 11 from the metal strip 481 takes place in process step V, a punching tool preferably also being used here.

The closure part 13 mentioned in the description can also be produced from a metal strip in a manner similar to the housing and the hinge element, stamping and embossing or bending techniques preferably being used. Nickel-free metals, for example titanium, are also preferably used here.

From the two FIGS. 16 and 17 it is clear that the manufacture of the parts mentioned is very simple and therefore extremely cost-effective. Expensive profiles from which the housing or hinge elements are cut out are no longer necessary. The subsequent machining of these cut profile parts can be omitted with the aforementioned manufacturing process.

Fig. 18, the mounting schematically shows six steps in an assembly for a spring hinge. This assembly essentially comprises the coulter nierelement 11 , the closure member 13 and the spring element 7 , as have already been described in detail in connection with FIGS. 1 to 17.

In steps I and II, the hinge element 11 is manufactured from a metal strip 481 , as was described in detail in connection with FIG. 17.

The illustration in step II again shows that the extension 9, initially rectangular in cross section, is given a round contour with the aid of an embossing tool 101 .

In the next step III, the closure part 13 is pushed onto the hinge element 11 . In the closing step IV, the spring element 7 is pushed on and secured by means of a sleeve 503 (V) which is then plugged on, the end of the extension 9 being squeezed in step VI, so that the sleeve 503 is secured. The flat surface resulting from the crushing is indicated by an "X".

The assembly is now assembled and, as shown in FIG. 18, can be separated from the metal strip 481 .

Of course, the assembly mentioned can also remain attached to the metal strip 481 , so that better handling compared to bulk goods is possible.

The method described above can also be used when an assembly is required which only consists of a hinge element 11 and a spring element 7 . In this case, step III shown in FIG. 18 can be omitted. This is shown in Fig. 19 a.

Instead of the closure part, a locking ring 502 can also be used, which, for example, enables locking by means of a bead. This is shown in Fig. 19b.

The spring hinge explained with reference to FIGS. 1 to 15 is also characterized in that the hinge element, which forms an assembly unit with the spring element and the closure part, as a whole can be easily inserted into the housing and can be anchored since the closure part is designed as a snap lock. With a lead of the assembly unit, the locking part snaps into the housing without requiring any other fastening measures that would make the assembly of the spring hinge more expensive.

Despite the simple assembly, a very precise guidance of the hinge element is achieved since this is guided on all sides by the closure part. Also in the embodiment of the closure part, which is shown in Fig. 8, all-round guidance of the hinge element is achieved in that the closure member engages around the Scharnierele element U-shaped and this flatly approaches the surface of the bracket on which the spring hinge is attached. Ultimately, the closure part also results in all-round guidance of the hinge element.

The special design of the closure part be acts as a particularly good guide: for length L, the height H and width B of this part apply following standard: L <H <B. Through these dimensions On the one hand, ionization becomes a secure anchor of the closure part in the assembled housing ge ensures; so it turns out to be free of play Seat of the closure part in the finished spring hinge on. On the other hand, it is precisely this reliable ver anchoring of the closure part in the spring hinge very good guidance of the hinge element, which guided without play inside the closure part is.  

So although the spring hinge is a very cheap Stig producible stamping housing in which the assembly unit just to be clipped on excellent technical egg properties that otherwise only have a lot higher manufacturing costs can be achieved.

The cost-effective manufacturing option for that Spring hinge is also because due to the special design of the Ver finally on special guidance facilities in the Spring hinge can be dispensed with, also ent fall otherwise usual locking elements that the Hinge element inside the housing keep be back up by drawing.

Claims (6)

1. A method for mounting a module on a spring hinge, wherein the assembly comprises a hinge element (11) and a spring element (7), as characterized by, that the hinge element (11) is stamped from a preferably band-shaped material (481) and / or is reshaped, and that the spring element ( 7 ) is applied to the hinge element ( 11 ) as long as the hinge element ( 11 ) is connected to the band-shaped material. 2. The method according to claim 1, characterized in that the assembly additionally comprises a closure part ( 13 ) or a locking ring ( 502 ), the relation or the front of the spring element ( 7 ) is applied to the hinge element ( 11 ). 3. The method according to claim 1 or 2, characterized in that the hinge element ( 11 ) from the band-shaped material ( 481 ) is separated when the assembly is fully assembled. 4. A method for producing a spring hinge, which has at least one housing and a hinge element, characterized in that the housing ( 3 ) is produced from a band-shaped material in the following steps:

• - clearing an area ( 483 ),
• - Drawing this area to form Ge side walls,
• - straightening the side edges of the area ( 483 ),
• - Folding a side strip of the loading area ( 483 ) to form a housing base, and
• - Detach the housing ( 3 ) from the metal band.

5. The method according to claim 4, characterized in that the hinge element ( 11 ) is made of a band-shaped material in the following steps:

• - Cutting out an area corresponding essentially to the contour of the hinge element ( 11 ),
• - impressing a curve to form an extension ( 9 ),
• - Punching out a hinge eye ( 15 ), and from separating the hinge element ( 11 ) from the metal band.

6. The method according to claim 4, characterized in that the housing ( 3 ) is made of a band-shaped material Ma uniform thickness.